Replacing failed or unsuitable locks
Lock Replacement
When a lock is damaged, unreliable, insecure or no longer suitable for the door, TLC can replace it with hardware that fits the property and the way it is used.
When replacement is right
A replacement lock should be chosen for the door, not just the key.
Replacement may be needed after damage, repeated failures, lost key control, insurance-driven upgrades or when an existing lock is simply wrong for the door.
Choosing hardware
The replacement needs to suit the existing door.
Timber, uPVC, composite, aluminium and commercial doors all use different lock arrangements. The right replacement depends on the lock case, cylinder size, handles, keep and frame.
We explain practical options before fitting begins, including whether repair remains suitable or replacement is the safer choice.
A replacement lock should restore security, fit cleanly and work smoothly every day.
Common reasons
When customers ask for lock replacement.
Replacement is most useful when the existing lock is no longer safe, reliable or appropriate.
Broken lock after force
Damage after attempted entry or heavy use.
Repeated lock failure
A lock that keeps sticking, slipping or failing.
Lost or stolen keys
A change where key control may have been lost.
Outdated hardware
Older locks that no longer meet the property need.
Insurance review
Checking whether fitted locks match your own policy wording.
Security upgrade
Replacing weak or unsuitable locks with better hardware.
Process
How lock replacement works.
- Check
Inspect the door and lock
We identify the fitted hardware and the reason for replacement.
- Confirm
Explain suitable options
You get clear options based on the door and security need.
- Agree
Agree the work
Parts, scope and price are confirmed before fitting.
- Replace
Fit the new lock
The replacement is fitted carefully and aligned.
- Test
Test operation
Locking, key operation and closing are checked.
- Explain
Hand over keys and guidance
We explain normal use and any maintenance advice.
Related services
Connected services for replacement decisions.
These pages help when replacement overlaps with repair, fitting or urgent securing.
All Locksmith Services
Return to the Services Hub to compare the right route.
RepairLock Repair
For locks that may be repairable before replacement is chosen.
InstallationLock Installation
For planned fitting and upgrades on suitable doors.
SecurityAdditional Security Locks
For layered improvements beyond replacing one lock.
UrgentEmergency Locksmith
For failures that leave you locked out or unable to secure the property.
Areas
Lock replacement across London, Essex and selected Kent areas.
These service pages are site-wide. Use the regional pages to understand current coverage for your address.
Questions customers ask
Lock replacement FAQs.
Answers for customers deciding whether a lock should be replaced.
When should a lock be replaced?
Replacement is sensible when the lock is damaged, unreliable, insecure, unsuitable or key control has been lost.
Can you replace a lock without changing the whole door?
Usually, yes. The lock or cylinder can often be replaced without replacing the door.
Do I need a new lock after keys are stolen?
It is usually sensible to change the lock or cylinder if stolen keys can identify or access the property.
Can you replace locks for insurance requirements?
We can fit suitable lock types, but you should check the exact wording of your own policy.
Can a broken lock be repaired instead?
Sometimes. If repair is safe and reliable, we explain that before recommending replacement.
What lock should replace my old one?
That depends on the door material, existing preparation, frame and security need.
Can you replace UPVC door locks?
We can assess uPVC cylinders and multipoint systems and explain the right replacement route.
Will I get new keys?
Yes, replacement cylinders and locks are supplied with new keys appropriate to the fitted hardware.
Can landlords request lock replacement?
Yes, where authorisation and access arrangements are clear.
Is replacement urgent?
It is urgent if the door cannot be secured or you cannot control access. Otherwise it can often be booked.
Replace with care
Need a Lock Replaced?
Tell us what happened, what type of door you have and whether the property is secure now.